Whiffletree.



No. 66|,888. Patented Nov. I3. |900. A. NELSON.

. wHlFFLETnE'E.

(Application filed Oct. 30, 1899.)

(No Model.)

lNIT-nn STATES PATENT OFFICE.

ALBERT NELSON, OF IDAHO FALLS, IDAHO.

WQHIFFLETREE.

sPEcIFIcATIoN forming part of Letters Patent No. 661,888, detedNevemtel1 13, 1900.

Application filed October 30, 1899. Serial No. 735,347. ll\lo model.)

To all whom t may concern.-

Beit known that I, .ALBERT NELSON, a citizen of the United States,residing at Idaho Falls, in the county of Bingham and State of Idaho,have invented a new and useful Whifiietree, of which the following is aspecification.

My invention is an improvementin the class of whiiiletrees which areprovided with attachments adapted to release the traces or tugs when duetraction is applied.

The improvement is embodied in a certain combination and arrangement ofparts, hereinafter described and claimed.

In the accompanying drawings, Figure l is a top view of the clip. Fig. 2is a back View of the clip. Fig. 3 is a vertical section of the clip onthe line l 2, Fig. 2, also a section of the cylinder containing the boltand spring on the line 3 4e, Fig. 2, showing howthe two parts of thecylinder are held together. Fig. 4 is a horizontal section on the line 56, Fig. 2, showingalso a portion of the operating device. Fig. 5 is ahorizontal section through the center of the whifiietree, showing a partof the operating device. view of the cylinder containing ,the spring andbolt with the back half of the cylinder removed. Fig. 7 is apart of theoperating device and, in connection with Figs. 4t and 5, shows themethod of withdrawing the bolt. Fig. 8 is an end view of the clip,showing the tug in dotted section.

Similar characters refer to similar throughout the several views.

The main shaft A, of wood, is that of an ordinary whiiifletreexcept thatits top and back sides are straight lines. On each end of the shaft Aand secured thereto by the rivet cis the clip B, composed, essentially,of two horizontal iron cylinders. The larger cylinder d and the fronthalf or base of the smaller cylinder 7' are madein one piece. (See Fig.3.) The inner surface of CZ is not a true circle, but is slightlyflattened on the back side at a, Fig. 3, to allow for cutting away apart of the outside material to give room for the spring p. The outerend of CZ is enlarged both ways in its vertical diameter to give roomfor the tugopening t, Fig. 2. Itis also enlarged on its parts back sideon its horizontal diameter to form the small projections ll, Fig. 8,between Fig. 6 is a back Whieh reste the outer end ofthe bent. The

extra material that would otherwise be cut away from this enlargement isupset, forming a slight projection 7c, Figs. l and et, on the end of thecylinder. The smaller cylinderj contains the spring p, which keeps thebolt b locked. Through b is the pin o, which compresses the spring whenthe bolt is drawn. In one end of Z9 is the pulley H, which forms a partof the operating device hereinafter referred to. The back partof thecylinderj is a separate piece and is secured to the base of the cylinderby the screws n n, Fig. 3, through the lugs s s, Fig. 6, in thecorresponding lugs r r, Fig. 8, on the base and against which rests oneend of the spring p when in position.

The operating device heretofore referred to consists of the leather cordm, secured to the back side of the shaft A by the T-headed nail fu andpassing around the pulley H, as shown in Fig. 4, thence to the pulley F,which is secured to the back side of the shaft A by the frame g and thescrew q, thence through the loop y to the opposite pulley .F, and thenceto the other end of the whifiietree. The loop is adapted to slide freeon the boltconnecting cord b, so that when the cord .e is pulledtraction is applied to both bolts to a practically equal degree. To theloop y is attached a buckle, (not shown in the drawings,) into whichbuckles the cord z, Fig. 7, which passes back over the dashboard througha loop attached to the dashboard. On the end of the cord a is thehandhold h, which is an iron; form or center u, covered with leather.Thedarrows in the drawings show the direction of the motion whilewithdrawing the bolts.

It will be seen that by the attachment of the ends of the cord Q0 to thewhifletree, as shown, and then passing it over pulleys H on the boltsl), and thence over the fixed pulleys F, the following advantage isattained, namely: The effect of the tractive force applied to the cordis practically double that produced when the ends of the cord areattached directly to the bolts. The pull applied by the cord z isequally effective on The combination with the Whiletree and to tlie cordocinnee'ted With the bolts as sliowii tug-clips applied to its ends, andspring-bolts and described.

carried in seid clips and havinvpulleysjou'rnaled on their inner` ends,of abcord passing v ALBERT NELSON 5 over the pulleys and secured at itsends to Witnesses:

.the Wh'ifetree at points intermediate of said T. W. NELSON,

bolts and pulleys, and a pull-cord attached i RASMUS NELSON.

